sm

examples/38-build-config.sx

@@ -0,0 +1,45 @@
+#import "modules/std.sx";
+#import "modules/compiler.sx";
+
+// --- #run build configuration ---
+// build_options() returns a BuildOptions struct at compile time.
+// Methods on it (add_link_flag, set_output_path) are compiler builtins
+// that configure the build without runtime cost.
+
+configure_build :: () {
+    opts := build_options();
+    // These calls are intercepted by the compiler at compile time.
+    // On a normal (non-wasm) target, inline if gates them off.
+    inline if OS == .wasm {
+        opts.set_output_path("sx-out/wasm/test.html");
+        opts.add_link_flag("-sUSE_SDL=3");
+    }
+}
+#run configure_build();
+
+// --- inline if with compiler constants ---
+
+main :: () {
+    // Verify #run configure_build() executed without error
+    print("build config: ok\n");
+
+    // Verify compiler constants are available
+    print("pointer size: {}\n", POINTER_SIZE);
+
+    // Verify inline if with OS/ARCH works
+    inline if OS == {
+        case .macos: { print("os: macos\n"); }
+        case .linux: { print("os: linux\n"); }
+        case .windows: { print("os: windows\n"); }
+        case .wasm: { print("os: wasm\n"); }
+        else: { print("os: unknown\n"); }
+    }
+
+    // Verify POINTER_SIZE is usable in inline if
+    inline if POINTER_SIZE == 8 {
+        print("64-bit platform\n");
+    }
+    inline if POINTER_SIZE == 4 {
+        print("32-bit platform\n");
+    }
+}